Home / 13,070.62-18,037.24-7,102.39

Finding the Fourth Proportional to 13,070.62, 18,037.24 and 7,102.39

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Solution

The fourth proportional to 13,070.62, 18,037.24 and 7,102.39 is: 9,801.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.62 : 18,037.24 = 7,102.39 : x
  2. Step 2: Convert to fraction form
    13,070.62/18,037.24 = 7,102.39/x
  3. Step 3: Cross multiply
    13,070.62x = 18,037.24 × 7,102.39
  4. Step 4: Simplify right side
    13,070.62x = 128,107,513.00
  5. Step 5: Solve for x
    x = 128,107,513.00/13,070.62
  6. Step 6: Final answer
    x = 9,801.18

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.